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Chitosan-Functionalized Hydroxyapatite-Cerium Oxide Heterostructure: An Efficient Adsorbent for Dyes Removal and
Aisha A Alshahrani1, Ali Q Alorabi1, M Shamshi Hassan1
1Department of Chemistry, College of Science, Al-Baha University, P.O. Box 1988, Al-Baha 65799, Saudi Arabia.
Nanomaterials (Basel, Switzerland)
|August 12, 2022
Summary
Camel waste bones were transformed into a novel chitosan-hydroxyapatite-cerium oxide (CS-HAP-CeO2) heterostructure. This eco-friendly material effectively removes dyes from wastewater and exhibits antimicrobial properties against E. coli.
Area of Science:
- Materials Science
- Environmental Science
- Nanotechnology
Background:
- Industrial wastewater often contains persistent dyes and harmful bacteria.
- Developing cost-effective and sustainable materials for water remediation is crucial.
- Camel bones represent an abundant, underutilized waste material with potential for material synthesis.
Purpose of the Study:
- To synthesize a novel heterostructure from camel waste bones for wastewater treatment.
- To evaluate the adsorption efficiency of the synthesized material for various industrial dyes.
- To assess the antimicrobial properties of the material against pathogenic bacteria.
Main Methods:
- Camel bones were processed into hydroxyapatite via a hydrothermal method.
- Cerium oxide-hydroxyapatite was synthesized and coated with chitosan (CS-HAP-CeO2).
- Material characterization involved XRD, SEM-EDX, TEM, and FT-IR analyses. Adsorption and antimicrobial tests were conducted.
Main Results:
- The CS-HAP-CeO2 heterostructure demonstrated high adsorption efficiency for Congo red (96%).
- Significant adsorption was observed for Rhodamine B (58.89%) and Methylene blue (47.74%).
- The material exhibited excellent bacteriostatic potential against E. coli.
Conclusions:
- The CS-HAP-CeO2 heterostructure derived from camel bones is an effective adsorbent for industrial dyes.
- Incorporating cerium oxide and chitosan enhances the adsorption and antimicrobial capabilities of hydroxyapatite.
- This research offers a sustainable approach to valorize waste materials for water pollution control.
